1. Respiratory failure after tracheal extubation in a patient with halo frame cervical spine immobilization—rescue therapy using the Combitube airway 
M. Mercer 
British Journal of Anaesthesia 
Volume 86, Issue 6, Pages (June 2001)
DOI: /bja/
Copyright © 2001 British Journal of Anaesthesia Terms and Conditions

2. Fig 1
The Combitube airway (photograph). 1, Oesophageal lumen; 2, tracheal lumen; 3, ring markings to coincide with teeth; 4, pilot balloon for proximal, large cuff; 5, pilot balloon for distal, small cuff; 6, large cuff; 7, small cuff; 8, side port openings of oesophageal (proximal) lumen; 9, opening of tracheal (distal) lumen.
British Journal of Anaesthesia  , DOI: ( /bja/ )
Copyright © 2001 British Journal of Anaesthesia Terms and Conditions

3. Fig 2
Lateral cervical spine x-ray with arrow indicating fracture through the base of the odontoid peg.
British Journal of Anaesthesia  , DOI: ( /bja/ )
Copyright © 2001 British Journal of Anaesthesia Terms and Conditions

4. Fig 3
(a) Patent airway of supine patient before craniocervical flexion (diagrammatic). Halo frame not shown. (b) After second episode of craniocervical flexion. Obstructed airway of extubated patient sat up in bed (diagrammatic). Halo frame shown. Angle A2 is greater than A1 in (a).
British Journal of Anaesthesia  , DOI: ( /bja/ )
Copyright © 2001 British Journal of Anaesthesia Terms and Conditions